function fakeAsync() {
  let delay = Math.random() * 1000;
  return new Promise((resolve, reject) => {
    setTimeout(() => {
      console.log(`Task use ${delay} ms ...`);
    }, delay);
  });
}
console.log('start...');
//(async () => {
  //await fakeAsync();
//})();

module.exports = fakeAsync;
